is the material on the portal is enough ?

rodha is very foundational, good for understanding concepts. after that, watch videos from channels that solve cat-type questions like unacademy or iquanta, to understand the approach to a question. finally, look at solved examples to understand types of questions and different methods to solve them. then try solving questions on your own and see the difference

Have you finished Those

Try the topic tests in that case, they're more foundational.

Yes, they are and also solve pyq's along with them